linux-kernel - Re: [PATCH 1/5] perf/arm-cci: Fix CPU hotplug race avoidance

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Message-ID: <alpine.DEB.2.21.1902102140080.8784@nanos.tec.linutronix.de>
Date:   Sun, 10 Feb 2019 21:43:18 +0100 (CET)
From:   Thomas Gleixner <tglx@...utronix.de>
To:     Robin Murphy <robin.murphy@....com>
cc:     will.deacon@....com, mark.rutland@....com,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        suzuki.poulose@....com, peterz@...radead.org,
        bigeasy@...utronix.de, "Li, Meng" <Meng.Li@...driver.com>
Subject: Re: [PATCH 1/5] perf/arm-cci: Fix CPU hotplug race avoidance

On Mon, 4 Feb 2019, Robin Murphy wrote:
> +
> +	cpus_read_lock();
> +	cci_pmu->cpu = smp_processor_id();

That wants to be raw_smp_processor_id() because this is preemptible
context and debug_smp_processor_id() will complain. 

Thanks,

	tglx